Hi OP, time for my review. I have implemented paid CDN on my site previously but the loading time was still awful. They asked me to resolve this with my hosting company as it's server issue. The hosting support agent helped me to clear server cache but still they didn't manage to help with the loading time. Then I decided to give OP's service another try. To my surprise, it really works like magic. The loading speed has improved from grade C(50+) to grade B (87), quite closed to grade A. OP is very skilled in this area.